With more and more retailers claimed their strategic layout of Omni-channel retailing, and the model of offline to mobile regarded as a shortcut to carry it out. In this paper, we construct a consumer choice model in which both the risk of direct marketing channel and the searching cost of the...

This paper intends to explore the utilization of entropy through football, generalizing the interpretation of entropy. We consider it as a measure of competitiveness of football leagues and relate it to the UEFA ranking, which ranks yearly the performance of countries in European Cups. We expect...

The paper develops an algorithm for making long-term (up to three months ahead) predictions of volatility reversals based on long memory properties of financial time series. The approach for computing fractal dimension using sequence of the minimal covers with decreasing scale is used to...

The formation of the European Union (EU) is the one of the biggest political – economic events of the last 50 years. The aim of this study is to develop EU economy functioning system dynamic model. Main research method is system dynamics. General scheme of EU economy system dynamic model is...

Mostly used estimators of Hurst exponent for detection of long-range dependence are biased by presence of short-range dependence in the underlying time series. We present confidence intervals estimates for rescaled range and modified rescaled range. We show that the difference in expected values...

Die Kumulation von Haushaltsstichproben steht auf der Agenda einer europäischen Neuordnung von Haushaltsbefragungen. Im Rahmen des Projektes ‚Amtliche Statistik und sozioökonomische Fragestellungen‘ des Statistischen Bundesamtes und in Abstimmung mit den EUROSTAT-Erfordernissen für neue...

Philippine seasonal time series data tends to have unstable seasonal behavior, called seasonal volatility. Current Philippine seasonal adjustment methods use X-11-ARIMA, which has been shown to be poor in the presence of seasonal volatility. A modification of the Census X-11 method for seasonal...

In this paper, we first re-visit the inference problem for interval identified parameters originally studied in Imbens and Manski (2004) and later extended in Stoye (2008). We take the general criterion function approach and establish a new confidence interval that is asymptotically valid under...

In this paper, we study partial identification of the distribution of treatment effects of a binary treatment for ideal randomized experiments, ideal randomized experiments with a known value of a dependence measure, and for data satisfying the selection-on-observables assumption respectively....

In this paper, we aim at forecasting the stochastic volatility of key financial market variables with the Kalman filter using stochastic models developed by Taylor (1986,1994) and Nelson (1990). First, we compare a stochastic volatility model relying on the Kalman filter to the conditional...